AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 206 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q3 2022. The put-call ratio across all filers is 0.50 and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $764 | -50.3% | 16,620 | -37.9% | 0.32% | -47.5% |
| Q2 2023 | $1,538 | +58.6% | 26,758 | +3.4% | 0.62% | +51.1% |
| Q1 2023 | $970 | -99.9% | 25,877 | -6.2% | 0.41% | +12.1% |
| Q3 2022 | $775,000 | -28.1% | 27,577 | -4.4% | 0.36% | -16.7% |
| Q2 2022 | $1,078,000 | -39.7% | 28,837 | -42.1% | 0.44% | -33.2% |
| Q1 2022 | $1,788,000 | +160.6% | 49,814 | +36.1% | 0.65% | +110.0% |
| Q3 2020 | $686,000 | – | 36,590 | – | 0.31% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| LAM GROUP, INC. | 130,250 | $4,884,375 | 4.79% |
| SHAKER INVESTMENTS LLC/OH | 82,253 | $3,084,488 | 1.72% |
| Mesirow Institutional Investment Management, Inc. | 325,669 | $12,212,588 | 1.33% |
| Portolan Capital Management | 340,593 | $12,772,238 | 1.22% |
| OBERWEIS ASSET MANAGEMENT INC/ | 178,200 | $6,682,500 | 1.04% |
| Granite Investment Partners, LLC | 536,821 | $20,130,788 | 0.84% |
| Capital Impact Advisors, LLC | 15,304 | $573,900 | 0.70% |
| Hillsdale Investment Management Inc. | 155,038 | $5,813,926 | 0.50% |
| GLOBEFLEX CAPITAL L P | 89,192 | $3,344,700 | 0.41% |
| Jackson Creek Investment Advisors LLC | 25,877 | $970 | 0.41% |